Stovepipe



JYJN. WARNER. STOVEPIPE GONNEGTION.

No. 7,372. Patented m 14; 1850.

tinirnn srarns PATENT ornion JAS. N. WARNER, OF BUFFALO, NEW YORK.

STOVEPIPE.

Specification of Letters Patent No. 7,372, dated May 14, 1850.

To all whom it may concern:

Be it known that I, JAMES N. VARNER, of Buffalo, in the county of Erieand State of New York, have invented or produced a new and usefulArticle of Manufacture, to wit, an Improved Stovepipe, of which thetollowing is a full, clear, and exact description, reference being hadto the accompanying drawing, which forms part of this speclfication andin which Figure 1 represents a View in perspective of a length and Fig.2 a similar view of an elbow of my improved stove pipe. My inventionconsists in a pipe composed of lengths upon each extremity of which aworm is swaged; when the pipe is to be put up, the worms of one-lengthare entered by turning into those of the next ones thus securing thewhole together-and forming a continuous pipe which can not beaccidentally disconnected.

In constructing my stove pipe, a sheet of metal is cut to the propersize and shape for a length, one end being slightly narrower than theother; this sheet is then bent into a tubular form and its edges lockedtogether or otherwise connected to form a seam (a) the ends of thelength thus formed are submitted to the action of a swage by which aworm (b) is formed as represented b in the annexed drawing. In puttingthese lengths together, the smaller end of the one is applied to thelarger end of another, care being taken to enter the worm of the smallerinto that of the larger, they are then turned and the worms engagingwith each other draw the larger over the smaller until they aresufficiently lapped. Stove pipe constructed in this manner is exemptfrom the disadvantages incident to that constructed with the commonsliding joints, as the pipe when put together is not only stiffer andwhen in long lengths less liable to sag, but it also obviates theinconvenience and danger incident to the drawing apart of the lengthswhich accident has been the frequent cause of disastrous fires. I

What I claim as my invention and desire to secure by Letters Patent isThe stove pipe herein described as a new article of manufacture.

In testimony whereof I have hereunto subscribed my name.

JAMES N. WARNER.

WVitnesses:

A. B. WVARNER, J AS. G. DAVIS.

